Loose-leaf binder.



vresidents of New -York, in

-justment, so

GEORGE BLATTEL .AND ROBERT REIFEL, f THIRD To BENJAMIN BLAKEM OF NEWYORK, N. Y., ASSIGNORS OF ONE- AN, OF BROOKLYN, NEW

YORK.

LOOSE-LEAF BINDER.

rivaaoa.

Application ala November e, 1914.

To all wtom t may concern.'

Be it known that we, GEORGE BLATTEL, a subject of the Czar of Russia,and ROBERT REIFEL, a citizen of the United States, and the county ofBronx and State of New York, have invented certain new and vusefulImprovements in Loose-Leaf Binders, of which the following is aspecification.

This invention relates to loose leaf binders and its object is toprovide adjustable connecting means between the covers of the binder,these connecting means being secured to one of the covers permanentlyand passing through perforations in the leaves and other cover, they aretherein locked, bv means of a moving bar which impinges the connectingmeans at any point and regulated by the thickness of the book.

These and other details and objects of the invention are more fullydescribed in the following specification, set forth in the claims andillustrated in the drawings, wherein:

Figure 1. is a perspective view of the improved binder. Fig. 2. is arear view of the same partly in section. Fig. 3. is a plan view of oneend of the locking bar. Fig. et. is a sectional view of the adjustingmeans for the locking bar. Fig. 5. is a longitudinal sectional view(horizontally disposed) of 4a connecting post. F ig..6. is a detailperspective showing the attachment of the post to its base. Fig. 7. is akey used in operating the device.

On account of the great bulk and weight attending the addition of sheetsto loose leaf books, it is very essential that the parts .andconnections be .solid and substantial, and not capable of bending norbecoming disconnected. In addition to these qualities, it is necessarythat the posts on which the leaves are placed should be capable ofadthat when a minimum number of leaves are used the posts will notproject too far above the removable cover and be an obstruction. Variousmeans have been sought to overcome these objections and the presentinvention provides a rigid post of normal length into which is adjusteda telescoping extension, the whole forming a substantially solid post,either part of which may be engaged by the locking bar, which alsoretains the removable cover.

The drawings show the cover 10 with the Specification of Letters Patent.

Patented Mar. 14, 1916. Serial N o. 870,560.

flexible portion 11, and the, end portion vor Hap 12 which incloses abar to which the Vbase bar 13 is secured by means of screws orotherwise, and through perforations 14, are secured the tubular posts15. lScrews 16 pass through the perforations and into the threaded lowerend of the tubes 15 which have tongues 16l tting into recesses 17 ateach side of the perforations 14, so that the tubes cannot turn.Permanently fitted to the inner end of the screws 16 are threadedextensions 171 which play in the threaded lower ends of tubularextensions 18, the head of the screw 171 being enlarged to play freelyin the tube 18, but not pass out of its lower end. In order to rotatethe extension tube and adjust it, the upper end is provided with amilled head 19, also a hole 20 for a wrench.

The right hand post in Fig. 2 shows how the length of the post may bereduced to provide for an ordinary size book while to accommodate moreleaves, the extensions 18 are screwed outward. When the leaves are addedand the upper cover 101 by means of its perforated flap 2l is put inposition, it isretained by means of the locking bar 22. The latter baris inclosed within the flap 21 and as will be seen in Figs. 2 and 3 hasthe perforations 23 through which the posts are fitted and they areelongated, s0 that the posts may be locked or released by a slightlongitudinal movement. The bar is moved as shown in Fig. f1 where itwill beV seen that its threaded stem plays in a nut 25, swiveled in thehead 26 that is secured to one end of the iiap 21 and the nut has asquared stein 27 to be engaged by the key 28. This key may also beprovided with a pin 29 to act as a wrench in the perfora- 9 tion 20. Theflap 21 may be of sheet metal so that the head 26 may be riveted thereinand the other ends of the aps may be fitted with similar heads toprevent wear and provide ends which will not be destructive to desks andpapers. `With this construction the binder may be quickly adjusted, sothat the covers may lit snugly about the leaves, no matter what theirthickness may be, and the ends of the posts will not prove anobjectionable feature, because they may always be brought close to thecover, unless a very small number of leaves are used.

It is obvious that the parts may be otherwise arranged or modifiedwithout departbase bar in the'ap, tubular ing from the essentialfeat1`1'res`k--aloovefde-v scrbed. Y

, What We'claimis;

l. In loose-leaf binders, the combination with acover having a flap atone end, of a secured to the bar, screws passing through the bar andinto the posts, threaded eXtensions to the screws, telescopic posts onthe Copies of this patent may be obtained for five cents each, byaddressing the end of the flap,

posts rigidly extensions and Within the rigid posts, milled heads on thetelescopic posts, a second ncover with a hollow` flap adapted to'iit onthe posts,` a perforated locking `loar with threaded end in the latterflap, a head at the a nut on the end of the locking` bar and sWiveled tothe head and means `for rotating the nut.

Signed'at New York in the county of New York and State of New7V York.

'GEORGE BLATTEL. ROBERT Y' REIFEL. Vitnesses:

JAMES F. DUHAMEL, GERTnUDE SCHOFIELD.

Commissioner of Patents,

Washington; D. C.

